5/11/2012 Temperature and Release Summary for Shasta and Trinity - March 2012

(Updated twice a week November through April)

Sacramento River Water Temperatures in Degrees F

Day Collected from CDEC (California Data Exchange Center) in CFS

Control

TCD SHD minus Point Shasta Spring Crk 

Wt. TCD 6/1 to 3/31 Generation Powerplant 

Avg. (Diff) Shd Spp Kwk Bsf Jlf Bnd Rdb Lws Ccr Igo El 815 Release 

Feb 48.8 48.3 45.6 48.1 48.6 48.8 48.9 49.3 44.7 48.5 44.7 3,274 635 

Mar

1 & 48.0 (0.5) ? 47.5 46.1 47.5 48.0 48.2 48.2 47.9 44.5 47.8 45.9 3,721 1,083 

2 48.3 (0.3) 48.0 ? 46.2 47.3 47.9 48.1 48.2 48.6 44.9 47.9 45.9 3,117 997 

3 48.5 (0.3) 48.2 46.2 47.4 49.1 49.5 49.5 49.7 45.2 48.5 46.9 2,813 1,070 

4 48.4 (0.3) ? 48.1 46.4 47.6 49.7 50.4 50.7 51.2 45.8 48.6 46.9 2,149 978 5 48.3 (0.3) ? 48.0 46.5 47.9 50.0 50.8 51.0 51.8 46.1 49.0 47.0 2,655 1,015 6 48.7 (0.6) 48.1 46.6 ? 48.1 49.4 50.1 50.5 51.2 45.3 48.5 46.3 3,210 755 

7 48.7 (0.5) 48.2 46.6 47.9 48.6 48.8 48.8 49.4 46.1 48.5 46.1 3,199 982 

8 & 48.7 (0.5) 48.2 46.7 47.6 49.6 49.9 50.0 50.2 46.7 48.7 46.9 2,826 1,027 9 & 48.6 (0.5) 48.1 46.6 48.0 49.8 50.4 50.6 51.3 46.6 48.9 46.8 2,987 1,012 

10 & 48.4 (0.4) 48.0 46.6 48.1 50.3 51.0 51.2 51.8 47.1 49.2 47.1 2,407 1,040 11 & 48.2 (0.6) 47.6 & 46.6 48.1 50.2 51.0 51.3 51.8 47.3 49.1 47.1 2,739 1,056 

12 48.1 (0.5) 47.6 46.7 48.2 49.6 50.1 50.3 51.0 47.0 48.8 46.3 2,902 957 

13 & 47.5 (0.5) 47.0 46.7 48.0 49.3 49.7 49.9 50.2 47.3 48.5 46.9 2,640 1,364 14 & 48.2 (0.7) 47.5 46.9 47.6 49.7 50.0 50.0 50.5 47.2 48.4 47.3 3,143 445 15 47.8 0.0 47.8 46.9 47.7 51.0 51.2 51.1 51.5 47.2 48.8 48.8 2,765 606 16 47.5 0.0 47.5 46.9 47.8 50.9 51.1 51.1 52.0 46.9 48.9 49.0 640 1,457 17 48.2 (0.5) 47.7 46.9 48.0 49.3 49.4 49.4 50.7 46.8 48.8 47.2 1,216 1,443 18 48.3 (0.6) 47.7 47.1 48.0 49.8 49.9 49.8 50.4 46.6 48.8 47.0 1,615 1,190 19 48.3 (0.6) 47.7 47.2 48.0 48.5 48.6 48.6 49.6 46.0 48.1 45.7 2,027 811 20 48.6 (0.8) 47.8 47.4 48.1 48.6 48.4 48.3 49.0 46.2 48.4 46.7 2,037 517 

21 48 5 47 5 47 9 49 2 49 4 49 2 50 0 46 6 48 6 47 4 2 275 515 

Mean Daily Releas

21 # 48.5 & 48.5 47.5 & 47.9 & 49.2 49.4 & 49.2 50.0 ! 46.6 48.6 47.4 2,275 515 

22 # 48.0 ! 48.0 47.5 ! 47.8 & 50.1 50.3 & 50.3 51.1 & 48.1 49.0 48.2 2,732 566 23 # 47.7 47.7 47.5 & 48.1 49.9 & 50.2 50.2 51.0 & 46.9 49.0 47.7 2,595 572 24 48.5 (0.8) 47.7 47.6 48.3 49.4 49.9 49.9 50.6 46.4 48.4 46.8 2,192 529 

25 48.4 (0.4) 48.0 47.6 48.1 49.0 48.9 48.8 49.5 47.0 48.6 46.9 2,089 534 26 48.4 (0.5) ^ 47.9 47.5 47.9 49.4 49.5 49.5 49.9 47.0 48.4 46.5 2,475 544 27 48.1 0.3 ! 48.4 47.3 47.7 48.8 48.9 48.9 49.5 46.1 48.0 46.8 2,145 1,028 28 48.0 (0.1) 47.9 47.3 47.6 49.6 49.3 49.0 & 49.4 47.2 49.0 48.5 1,014 1,301 

29 48.4 (0.8) 47.6 47.3 47.8 50.5 50.9 50.9 51.5 46.6 48.4 48.1 1,219 1,344 

30 48.5 (0.6) 47.9 47.3 48.0 50.4 50.5 50.3 51.0 47.1 48.9 49.5 654 1,548 31 47.7 0.2 47.9 47.2 48.1 51.3 51.2 51.1 & 51.7 47.4 49.1 49.5 181 1,515 

Avg 48.3 47.9 46.9 47.9 49.6 49.9 49.9 50.5 46.6 48.6 47.2 2,270 961 Tot cfs 70,379 29,801 Tot af 139,597 59,110 

# = Station out of service ^ - estimated (7 hours or less available) ? = Avg. includes estimated data! = 17 hours or less of readings & = 18 to 23 hours of reading ND = No hourly readings or incorrect 

Control Point: Balls Ferry 3/1/2011 to 5/31/2011; Jelly's Ferry 6/1/2011 to 3/31/2012.NOTE: On 7/19/2011 the probe for SHD was extended farther out into the river so at low flows

 it should no longer be exposed to the air. 8/2/2011 the extended pipe floated away.  Some hourly readings for SHD are questionable again and are being estimated.Mar 21-23 most sites missing many hourly readings due to issues with the Satellite transmission.

V:\~WATER\_res_ops\Tempmodel\~sactemp\2012TempFiles\[03_2012 Monthly Summary.xls]Sac Riv Temps